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Communication Dans Un Congrès Année : 2013

Electrical characterization of PEN films using TSDC and PEA measurements

Mai Quyen Hoang
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Laurent Boudou
Séverine Le Roy
Gilbert Teyssedre

Résumé

Thermo-stimulated depolarization current (TSDC) measurements have been performed on poly(ethylene naphthalene 2,6-dicarboxylate) (PEN), an aromatic polyester. The aim is to develop the understanding of trapping mechanisms at play in this material, and particularly to understand the effect of temperature. Experimental results of TSDC are interpreted with the help of space charge measurements using the pulsed electroacoustic method (PEA) on PEN samples. For TSDC measurements, samples were polarized at temperatures of 130°C and 170°C. In both cases, the sub-glass transition and the glass transition relaxations are observed. However, in the case of a polarization temperature of 170°C, one more TSDC peak, so-called ρ-peak is observed at temperatures above the glass transition. From space charge results, it is shown that the ρ-peak has not a dipolar origin; it has been associated to charge detrapping in the material
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hal-03942788 , version 1 (18-01-2023)

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Mai Quyen Hoang, Laurent Boudou, Séverine Le Roy, Gilbert Teyssedre. Electrical characterization of PEN films using TSDC and PEA measurements. ICDS : IEEE International Conference on Solid Dielectrics Bologna, Italy, Jun 2013, Bologna, Italy. pp.488-491, ⟨10.1109/ICSD.2013.6619899⟩. ⟨hal-03942788⟩
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